CN202973892U - Grate plate of chain grate machine - Google Patents
Grate plate of chain grate machine Download PDFInfo
- Publication number
- CN202973892U CN202973892U CN 201220585304 CN201220585304U CN202973892U CN 202973892 U CN202973892 U CN 202973892U CN 201220585304 CN201220585304 CN 201220585304 CN 201220585304 U CN201220585304 U CN 201220585304U CN 202973892 U CN202973892 U CN 202973892U
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- China
- Prior art keywords
- grate
- plate
- hole
- chain
- part plate
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- Withdrawn - After Issue
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Abstract
The utility model discloses a grate plate of a chain grate machine, which comprises a grate plate, wherein the grate plate mainly consists of a head part plate, a tail part plate and side plates arranged on two sides of the head part plate; the head part plate, the tail part plate and the side plates are in an integral structure; the lower end parts of the side plates are respectively provided with an inverse U-shaped sleeve groove; the head part plate and the tail part plate are respectively provided with a grate hole; and an acute angle between the grate hole opening direction and the middle axis of a cooperation shaft in the U-shaped sleeve groove is 75-80 degrees. According to the grate plate of the chain grate machine disclosed by the utility model, on one hand, the material leakage rate of bulk cargo is effectively lowered, and on the other hand, the hot airflow flowing direction when the hot airflow passes through the grate hole is changed; the hot airflow turbulence state is enhanced; the hot airflow residence time is prolonged; materials can be fully dried and preheated in the chain grate machine; and the heat use ratio is enhanced. Meanwhile, the grate plate of the chain grate machine has the advantages of simple structure form, easiness in manufacture and reliability in use.
Description
Technical field
The utility model relates to the chain grate machine equipment field that is applied in metallurgy industry acid pellet, Direct Reducing Iron Project, a kind of grate-kiln grate plate specifically.
Background technology
The chain grate machine that is applied in metallurgy industry acid pellet, Direct Reducing Iron Project is a kind of special equipment of at high temperature working.Holding most flimsy part in chain grate machine is the grate plate, during the work of chain grate machine, its bearing material effect of grate plate, and moved to the high-temperature region by low-temperature space under the traction of drive unit, in motion, heat exchange from lower to upper or is from top to bottom carried out with the material on grate plate top in the grate hole of hot blast by the grate plate.Metallurgical briquetting is the main equipment of a kind of drying, preheating, fixed metallurgical briquetting with chain grate machine, its operation principle be with green-ball by distributing device with the even cloth of raw material ball on the grate bed of slow running, the thermal current that utilization is discharged from central cooler and rotary kiln progressively carries out drying, preheating, removes adsorbed water and the crystallization water in ball green-ball, reaches to send into after enough intensity to continue to add thermal bake-out in rotary kiln.
The grate bed of chain grate machine is comprised of polylith grate plate and chain link, and grate plate and chain link are linked together by little axle, distance sink tube etc., and the purpose of rolling into a ball for reaching pre-hot consolidation raw material has long and narrow hole, to come dry pellet by thermal current on grate plate and chain link.At present, hang be arranged on chain grate chain spindle the grate plate on the grate hole of opening be all straight hole, be on perforate direction and the grate plate in grate hole in U-shaped cover axial trough the axis of institute's fitted shaft parallel, thereby the air-flow that passes through the grate plate is also direction straight up and down, affect to a certain extent the drying effect of raw material ball, and can cause the leakage material of bulk cargo.
The utility model content
The ventilation grate hole of opening for the grate plate upper surface that solves prior art medium chain grate machine is generally long and narrow straight hole, easily cause the poor problem of leakage material, drying effect of material, the utility model provides a kind of grate-kiln grate plate, on the perforate direction in this grate hole and grate plate in U-shaped cover axial trough the axis of institute's fitted shaft at an angle, changed the circulating direction of thermal current in the grate plate.
The utility model is to address the above problem the technical scheme that adopts to be: a kind of grate-kiln grate plate, comprise the grate plate, the grate plate mainly is comprised of head plate, afterbody plate and the side plate that is located at head plate both sides, head plate, afterbody plate and side plate are overall structure, the side plate bottom is provided with respectively the U-shaped cover axial trough of handstand, have the grate hole on head plate and afterbody plate, the perforate direction in described grate hole is 75 °-80 ° with the acute angle that the axis of institute's fitted shaft in U-shaped cover axial trough becomes.
The aperture widths in described grate hole is 5-10mm.
The aperture widths in described grate hole is 7mm.
In the utility model, the use state of described grate plate is for being staggered installation of successively, the U-shaped cover axial trough of the adjacent plate of grate in twos is interconnected, and in the adjacent plate of grate in twos, the extended line of grate hole perforate direction intersects, and is beneficial to can form more uniform turbulent condition at thermal current during by the grate hole.
The beneficial effects of the utility model: in the ventilation grate hole that the utility model grate plate upper surface is opened and U-shaped cover axial trough, the axis of institute's fitted shaft is at an angle, effectively reduce on the one hand the leakage material rate of bulk cargo, changed on the other hand the flow direction of thermal current by the grate hole time, strengthened the turbulent condition of thermal current, improved the time of staying of thermal current, make material can obtain drying and preheating more fully in chain grate machine, strengthened the utilization rate of heat; Simultaneously, this version is simple, makes simple and easyly, uses reliable.
Description of drawings
Fig. 1 is outside drawing of the present utility model;
Fig. 2 is that the utility model M is to view;
Fig. 3 is the A-A line cutaway view of Fig. 2;
Reference numeral: 1, grate plate; 2, grate hole; 3, head plate; 4, afterbody plate; 5, side plate; 6, U-shaped cover axial trough; D, aperture widths.
The specific embodiment
Further set forth the utility model below in conjunction with drawings and Examples, a kind of grate-kiln grate plate that foundation the utility model provides is made specific description.
As depicted in figs. 1 and 2, a kind of grate-kiln grate plate, comprise grate plate 1, grate plate 1 mainly is comprised of head plate 3, afterbody plate 4 and the side plate 5 that is located at head plate 3 both sides, head plate 3, afterbody plate 4 and side plate 5 are overall structure, and side plate 5 bottoms are provided with respectively the U-shaped cover axial trough 6 of handstand, have grate hole 2 on head plate 3 and afterbody plate 4, as shown in Figure 3, the perforate direction in described grate hole 2 is 75 °-80 ° with the acute angle that the axis of U-shaped cover axial trough 6 interior institute fitted shaft becomes.
The aperture widths D in described grate hole 2 is 5-10mm.
The aperture widths D in described grate hole 2 is 7mm.
in actual application, the grate plate quantity required due to separate unit chain grate machine is a lot, during fabrication can be to the grate plate perforate of wherein half the quantity direction that tilts, to second half grate plate opposite direction that tilts, when mounted each row grate plate is taked the mode that is staggered installation of, be that the use state of grate plate is for being staggered installation of successively, the U-shaped cover axial trough of the adjacent plate of grate in twos is interconnected, and in the adjacent plate of grate in twos, the extended line of grate hole perforate direction intersects, be beneficial to form more uniform turbulent condition at thermal current during by the grate hole, simultaneously, this grate plate structure form is simple, make simple and easy, use reliable, adopt this kind version in chain grate machine system, has economic benefit widely.
Claims (3)
1. grate-kiln grate plate, comprise grate plate (1), grate plate (1) mainly is comprised of head plate (3), afterbody plate (4) and the side plate (5) that is located at head plate (3) both sides, head plate (3), afterbody plate (4) and side plate (5) are overall structure, side plate (5) bottom is provided with respectively the U-shaped cover axial trough (6) of handstand, have grate hole (2) on head plate (3) and afterbody plate (4), it is characterized in that: the perforate direction in described grate hole (2) is 75 °-80 ° with the acute angle that the axis of U-shaped cover axial trough (6) interior institute fitted shaft becomes.
2. a kind of grate-kiln grate plate according to claim 1 is characterized in that: the aperture widths (D) in described grate hole (2) is 5-10mm.
3. a kind of grate-kiln grate plate according to claim 1 and 2 is characterized in that: the aperture widths (D) in described grate hole (2) is 7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585304 CN202973892U (en) | 2012-11-08 | 2012-11-08 | Grate plate of chain grate machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585304 CN202973892U (en) | 2012-11-08 | 2012-11-08 | Grate plate of chain grate machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202973892U true CN202973892U (en) | 2013-06-05 |
Family
ID=48514955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220585304 Withdrawn - After Issue CN202973892U (en) | 2012-11-08 | 2012-11-08 | Grate plate of chain grate machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202973892U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944113A (en) * | 2012-11-08 | 2013-02-27 | 中信重工机械股份有限公司 | Chain grate machine grate plate and using method thereof |
| CN108826963A (en) * | 2018-07-27 | 2018-11-16 | 沈阳精合数控科技开发有限公司 | A kind of split type grate-kiln grate plate, connection structure and its manufacturing method |
-
2012
- 2012-11-08 CN CN 201220585304 patent/CN202973892U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944113A (en) * | 2012-11-08 | 2013-02-27 | 中信重工机械股份有限公司 | Chain grate machine grate plate and using method thereof |
| CN102944113B (en) * | 2012-11-08 | 2015-09-09 | 中信重工机械股份有限公司 | A kind of grate plate and using method thereof |
| CN108826963A (en) * | 2018-07-27 | 2018-11-16 | 沈阳精合数控科技开发有限公司 | A kind of split type grate-kiln grate plate, connection structure and its manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130605 Effective date of abandoning: 20150909 |
|
| RGAV | Abandon patent right to avoid regrant |